Survey the Class, Survey the School

10 min

Narrative

The purpose of this Warm-up is to elicit the idea that each bar on the bar graph represents a category, which will be useful when students use survey data to create a bar graph in a later activity.

Launch

  • Groups of 2
  • Display the graph.
  • “What do you notice? What do you wonder?”
  • 1 minute: quiet think time
Teacher Instructions
  • “Discuss your thinking with your partner.”
  • 1 minute: partner discussion
  • Share and record responses.

Student Task

What do you notice? What do you wonder?

Sample Response

Students may notice:

  • The graph is about students’ favorite science topics.
  • There are 5 categories.
  • Some bars stop at a horizontal line and others stop between two lines.

Students may wonder:

  • What are the categories?
  • What does each line or each step represent?
  • How many people were surveyed to get the data?
Activity Synthesis (Teacher Notes)
  • “This is a graph about students’ favorite science topics. What are some possible categories for the graph?” (living things, space, chemistry, volcanoes, robots)
Standards
Building Toward
  • 3.MD.3·Draw a scaled picture graph and a scaled bar graph to represent a data set with several categories. Solve one- and two-step "how many more" and "how many less" problems using information presented in scaled bar graphs. <em>For example, draw a bar graph in which each square in the bar graph might represent 5 pets.</em>
  • 3.MD.B.3·Draw a scaled picture graph and a scaled bar graph to represent a data set with several categories. Solve one- and two-step “how many more” and “how many less” problems using information presented in scaled bar graphs. <span>For example, draw a bar graph in which each square in the bar graph might represent 5 pets.</span>

10 min

25 min